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sanguine 英 ['sæŋɡwɪn] 美 ['sæŋɡwɪn]
基本释义：
This is both an adjective and a noun.As an adjective,it means very hopeful or optimistic.
adj.乐天的；自信的；红润的
n.血红色
例句：
1.His private expectations were not so sanguine.
他私下的期望并不是那么乐观。
2.We are sanguine that we shall be succeeding.
我们自信会成功。
